Upfront presets in responsive mode not assigned properly

I am having a problem with my presets. Here are the steps I follow:

– add a text module to the site

– create and configure preset for it and save (so far so good)

– switch to “Responsive mode”

– switch to “tablet” breakpoint, create and configure preset for that module and save

– do the same for “mobile” breakpoint

After saving both, I get reverted to the one that’s been set as the “default” (desktop) breakpoint/mode.